\begin{table}[htbp!] \centering \begin{threeparttable} \caption{Hjort et al. (2021) policy adoption experiment: Balance in letter adoption (control group)} \begin{tabular} {l c c c} \toprule & Avg. in No Letter Group & {$\Delta$} in Letter Group & $ p\text{-value}$ \\ \hline  \textit{Mayor's Characteristics} \\
\hspace{1em}Male & 90.52 & -4.47 & 0.41 \\
\hspace{1em}Age & 46.96 & 0.67 & 0.67 \\
\hspace{1em}College or more & 57.76 & -8.92 & 0.26 \\
\hspace{1em}2nd Term & 14.66 & -5.35 & 0.25 \\
\hspace{1em}Electoral Margin Victory & 16.73 & -0.27 & 0.94 \\
\hspace{1em}Leftist Political Party & 33.45 & -12.52 & 0.06 \\ \\ \textit{Municipalities' Characteristics} \\
\hspace{1em}Population & 20.99 & 0.84 & 0.75 \\
\hspace{1em}College Population & 5.54 & -0.28 & 0.56 \\
\hspace{1em}Public Adm College & 33.51 & -1.68 & 0.40 \\
\hspace{1em}Poverty & 23.56 & -0.85 & 0.75 \\
\hspace{1em}Gini & 49.66 & -0.68 & 0.48 \\
\hspace{1em}Big South & 58.79 & -0.65 & 0.93 \\
\hspace{1em}Per Capita Income & 488.38 & -12.33 & 0.71 \\
\hspace{1em}Local Taxes Revenue (2010-15) & 6.40 & 0.51 & 0.54 \\ \\ \textit{Placebo Adoption} \\
\hspace{1em}Use of E-Procurement & 0.52 & -0.04 & 0.71 \\
\hspace{1em}$ P(\text{Use of E-Procurement}|X) $ & 0.52 & 0.01 & 0.55 \\ \\
Joint $ F\text{-test}$ & & & 0.31 \\ \hline
$ N $ & 580 & 43 & \\
\bottomrule \end{tabular} \label{tab:hjort_balance} \begin{tablenotes} \footnotesize \item This table compares observable charactertistics between the municipalities in the Control Group from Hjort et al. (2021) that were not sending a taxpayer reminder letter with those that were. Municipalities in which the mayor and the city staff gave conflicting responses to letter adoption are excluded. $\Delta$ in Letter Group is the difference in the means from the No Letter Group to the Letter Group. The $ p\text{-value}$ is computed from robust standard errors. The Use of E-Procurement is considered as a placebo adoption outcome in Hjort et al. (2021). $ P(\text{Use of E-Procurement}|X)$ is the predicted probability of adopting E-Procurement based on a logit model including all listed Mayor and Municipalities' characteristics. The Joint $ F\text{-test}$ includes all variables in the table. \end{tablenotes} \end{threeparttable} \end{table}
